one girl was actually sleeping in her room napping and the people came in and left and she didn't even notice. >> reporter: police released surveillance photos of two suspects who they say entered open dorm rooms on the fifth, seventh, eighth and 10th floors. >> i think like college students especially in the city like d.c. should be more aware of their surroundings and lock their doors and just be more aware. >> reporter: students are told to keep their doors locked even when they're in the room and to report stranges are right away. like the attempted sexual assault at rice hall, the crimes are a wakeup call. >> we're in the city. anything is possible. >> definitely going to lock my door any time guineawhere now. that's for sure. -- any time i go anywhere now. that's for sure. >> rice hall is advicing using a buddy system for students that work after hours and to let supervises know their hours. in both cases students and staff are to call campus security if they see a stranger in the building. >>> crime may have hit another school in our region. a man who worked at the maryland scho